// virtual function dispatch table for IODEVICE Object
#include "tmtypes.h"

typedef enum 
{
	IODEV_TYPE_SERIAL,			//0 Serial Port
	IODEV_TYPE_FILE,			//1 Command File
	IODEV_TYPE_STDIO			//2 Std I/O
}	IODEV_TYPE ;

typedef enum 
{
	IODEV_HANDLE_IN,			//0 stdin
	IODEV_HANDLE_OUT,			//1 Stdout
	IODEV_HANDLE_ERR			//2 Stderr
}	IODEV_HANDLE;


typedef enum 
{
	IODEV_DIRECTION_IN,			//0 stdin
	IODEV_DIRECTION_OUT,			//1 Stdout
	IODEV_DIRECTION_BOTH			//2 Stderr
}	IODEV_DIRECTION;

typedef struct IODEVICE_VTBL
{
	Bool 	(*OpenComm)(
		Pointer pObject,
		UInt32 dwCommPort, 
		UInt32 dwBaudRate, 
		IODEV_HANDLE Type );

	Bool 	(*OpenStdIO)(
		Pointer pObject, 
		UInt32 dwWindowSize, 
		IODEV_HANDLE iodevType );

	Bool 	(*OpenFile)(
		Pointer pObject, 
		UInt8* pszFilename, 
		IODEV_HANDLE Type );

	void	(*Close)(
		Pointer pObject );

	Bool	(*ReadChar)(
		Pointer pObject, 
		Pointer pBuffer, 
		UInt32 dwLength );

	Bool	(*WriteChar)(
		Pointer pObject, 
		Pointer pBuffer, 
		UInt32 dwLength );

	Bool	(*WriteStr)(
		Pointer pObject, 
		UInt8* pszString);

	Bool	(*GetHandles)(
		PVOID pObject, 
		HANDLE* StdIn, 
		HANDLE* StdOut, 
		HANDLE* StdErr );

}	IODEVICE_VTBL, *PIODEVICE_VTBL;

Bool	iodevCreate ( Pointer *ppObject, PIODEVICE_VTBL *ppVtbl );
Bool	iodevDestroy ( Pointer pObject );
/*

Pointer 	iodevOpen(
	UInt8* pszFilename, 
	Bool Direction,
	Pointer pObject );

void	iodevClose(
	Pointer pObject );

Bool	iodevReadChar(
	Pointer pObject, 
	Pointer pBuffer, 
	UInt32 dwLength );

Bool	iodevWriteChar(
	Pointer pObject, 
	Pointer pBuffer, 
	UInt32 dwLength );

Bool	iodevWriteStr(
	Pointer pObject, 
	UInt8* pszString);

*/